Service difficulty report · Support · Boeing 7377H4

Difficulty date
January 25, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N955WN
Make and model
Boeing 7377H4
Aircraft serial
36671
Aircraft time
38,739 hours, 23,607 cycles
Part
Support
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT FROM STA 727A+2 TO STA 767; RBL 20 TO 22; WL 156.<[01] MEASURMENT UPDATE AND VERIFY APPLICABILITY OF SRM 53-00-53-1A-2;MEASURED 0.6'L X 0.5'W AND 0.005' DEEP FOUND TO BE OUT OF LIMITS<BR>BS727A+14 MEASURED 0.6'L X 0.5'W AND 0.001' DEEP FOUND TO BE IN LIMITS<BR>BS727A+10 MEASURED 0.6'L X 0.6'W AND 0.004' DEEP FOUND TO BE IN LIMITS<BR>BS727A+2 MEASURED 0.4'L X 0.3'W AND 0.001' DEEP FOUND TO BE IN LIMITS <BR><BR>CAL ID PIN POINT DEPTH GAUGE<BR>ATS2577<BR>S/N UNKNOWN<BR>DUE 11/2023;[03] VERIFIED CORRECTIVE AC

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